com.amazonaws.services.s3.transfer
Class Transfer

java.lang.Object
  com.amazonaws.services.s3.transfer.Transfer

Direct Known Subclasses:

Download, Upload

public abstract class Transfer
extends Object

Represents an asynchronous upload to or download from Amazon S3. Use this class to check a tranfer's progress, add listeners for progress events, check the state of a transfer, or wait for the transfer to complete.

See TransferManager for more information about creating transfers.

See Also:

TransferManager.upload(String, String, java.io.File), TransferManager.upload(com.amazonaws.services.s3.model.PutObjectRequest)

Nested Class Summary

static class

Transfer.TransferState Enumeration of the possible transfer states.

Method Summary

void	addProgressListener(ProgressListener listener) Adds the specified progress listener to the list of listeners receiving updates about this transfer's progress.
String	getDescription() Returns a human-readable description of this transfer.
TransferProgress	getProgress() Returns progress information about this transfer.
Transfer.TransferState	getState() Returns the current state of this transfer.
boolean	isDone() Returns whether or not the transfer is finished (i.e.
void	removeProgressListener(ProgressListener listener) Removes the specified progress listener from the list of progress listeners receiving updates about this transfer's progress.
void	waitForCompletion() Waits for this transfer to complete.
AmazonClientException	waitForException() Waits for this transfer to finish and returns any error that occurred, or returns null if no errors occurred.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

isDone

public boolean isDone()

Returns whether or not the transfer is finished (i.e. completed successfully, failed, or was canceled).

Returns:

Returns true if this transfer is finished (i.e. completed successfully, failed, or was canceled). Returns false if otherwise.

waitForCompletion

public void waitForCompletion()
                       throws AmazonClientException,
                              AmazonServiceException,
                              InterruptedException

Waits for this transfer to complete. This is a blocking call; the current thread is suspended until this transfer completes.

Throws:

AmazonClientException - If any errors were encountered in the client while making the request or handling the response.

AmazonServiceException - If any errors occurred in Amazon S3 while processing the request.

InterruptedException - If this thread is interrupted while waiting for the transfer to complete.

waitForException

public AmazonClientException waitForException()
                                       throws InterruptedException

Waits for this transfer to finish and returns any error that occurred, or returns null if no errors occurred. This is a blocking call; the current thread will be suspended until this transfer either fails or completes successfully.

Returns:

Any error that occurred while processing this transfer. Otherwise returns null if no errors occurred.

Throws:

InterruptedException - If this thread is interrupted while waiting for the transfer to complete.

getDescription

public String getDescription()

Returns a human-readable description of this transfer.

Returns:

A human-readable description of this transfer.

getState

public Transfer.TransferState getState()

Returns the current state of this transfer.

Returns:

The current state of this transfer.

addProgressListener

public void addProgressListener(ProgressListener listener)

Adds the specified progress listener to the list of listeners receiving updates about this transfer's progress.

Parameters:

listener - The progress listener to add.

removeProgressListener

public void removeProgressListener(ProgressListener listener)

Removes the specified progress listener from the list of progress listeners receiving updates about this transfer's progress.

Parameters:

listener - The progress listener to remove.

getProgress

public TransferProgress getProgress()

Returns progress information about this transfer.

Returns:

The progress information about this transfer.